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1 | import { Transaction } from 'sequelize' | |
2 | import { Activity, ActivityAudience } from '../../../../shared/models/activitypub' | |
3 | import { logger } from '../../../helpers/logger' | |
4 | import { ActorModel } from '../../../models/activitypub/actor' | |
5 | import { ActorFollowModel } from '../../../models/activitypub/actor-follow' | |
6 | import { JobQueue } from '../../job-queue' | |
7 | import { VideoModel } from '../../../models/video/video' | |
8 | import { getActorsInvolvedInVideo, getAudienceFromFollowersOf, getRemoteVideoAudience } from '../audience' | |
9 | import { getServerActor } from '../../../helpers/utils' | |
10 | ||
11 | async function sendVideoRelatedActivity (activityBuilder: (audience: ActivityAudience) => Activity, options: { | |
12 | byActor: ActorModel, | |
13 | video: VideoModel, | |
14 | transaction?: Transaction | |
15 | }) { | |
16 | const actorsInvolvedInVideo = await getActorsInvolvedInVideo(options.video, options.transaction) | |
17 | ||
18 | // Send to origin | |
19 | if (options.video.isOwned() === false) { | |
20 | const audience = getRemoteVideoAudience(options.video, actorsInvolvedInVideo) | |
21 | const activity = activityBuilder(audience) | |
22 | ||
23 | return unicastTo(activity, options.byActor, options.video.VideoChannel.Account.Actor.sharedInboxUrl) | |
24 | } | |
25 | ||
26 | // Send to followers | |
27 | const audience = getAudienceFromFollowersOf(actorsInvolvedInVideo) | |
28 | const activity = activityBuilder(audience) | |
29 | ||
30 | const actorsException = [ options.byActor ] | |
31 | return broadcastToFollowers(activity, options.byActor, actorsInvolvedInVideo, options.transaction, actorsException) | |
32 | } | |
33 | ||
34 | async function forwardVideoRelatedActivity ( | |
35 | activity: Activity, | |
36 | t: Transaction, | |
37 | followersException: ActorModel[] = [], | |
38 | video: VideoModel | |
39 | ) { | |
40 | // Mastodon does not add our announces in audience, so we forward to them manually | |
41 | const additionalActors = await getActorsInvolvedInVideo(video, t) | |
42 | const additionalFollowerUrls = additionalActors.map(a => a.followersUrl) | |
43 | ||
44 | return forwardActivity(activity, t, followersException, additionalFollowerUrls) | |
45 | } | |
46 | ||
47 | async function forwardActivity ( | |
48 | activity: Activity, | |
49 | t: Transaction, | |
50 | followersException: ActorModel[] = [], | |
51 | additionalFollowerUrls: string[] = [] | |
52 | ) { | |
53 | logger.info('Forwarding activity %s.', activity.id) | |
54 | ||
55 | const to = activity.to || [] | |
56 | const cc = activity.cc || [] | |
57 | ||
58 | const followersUrls = additionalFollowerUrls | |
59 | for (const dest of to.concat(cc)) { | |
60 | if (dest.endsWith('/followers')) { | |
61 | followersUrls.push(dest) | |
62 | } | |
63 | } | |
64 | ||
65 | const toActorFollowers = await ActorModel.listByFollowersUrls(followersUrls, t) | |
66 | const uris = await computeFollowerUris(toActorFollowers, followersException, t) | |
67 | ||
68 | if (uris.length === 0) { | |
69 | logger.info('0 followers for %s, no forwarding.', toActorFollowers.map(a => a.id).join(', ')) | |
70 | return undefined | |
71 | } | |
72 | ||
73 | logger.debug('Creating forwarding job.', { uris }) | |
74 | ||
75 | const payload = { | |
76 | uris, | |
77 | body: activity | |
78 | } | |
79 | return JobQueue.Instance.createJob({ type: 'activitypub-http-broadcast', payload }) | |
80 | } | |
81 | ||
82 | async function broadcastToFollowers ( | |
83 | data: any, | |
84 | byActor: ActorModel, | |
85 | toFollowersOf: ActorModel[], | |
86 | t: Transaction, | |
87 | actorsException: ActorModel[] = [] | |
88 | ) { | |
89 | const uris = await computeFollowerUris(toFollowersOf, actorsException, t) | |
90 | return broadcastTo(uris, data, byActor) | |
91 | } | |
92 | ||
93 | async function broadcastToActors ( | |
94 | data: any, | |
95 | byActor: ActorModel, | |
96 | toActors: ActorModel[], | |
97 | actorsException: ActorModel[] = [] | |
98 | ) { | |
99 | const uris = await computeUris(toActors, actorsException) | |
100 | return broadcastTo(uris, data, byActor) | |
101 | } | |
102 | ||
103 | async function broadcastTo (uris: string[], data: any, byActor: ActorModel) { | |
104 | if (uris.length === 0) return undefined | |
105 | ||
106 | logger.debug('Creating broadcast job.', { uris }) | |
107 | ||
108 | const payload = { | |
109 | uris, | |
110 | signatureActorId: byActor.id, | |
111 | body: data | |
112 | } | |
113 | ||
114 | return JobQueue.Instance.createJob({ type: 'activitypub-http-broadcast', payload }) | |
115 | } | |
116 | ||
117 | async function unicastTo (data: any, byActor: ActorModel, toActorUrl: string) { | |
118 | logger.debug('Creating unicast job.', { uri: toActorUrl }) | |
119 | ||
120 | const payload = { | |
121 | uri: toActorUrl, | |
122 | signatureActorId: byActor.id, | |
123 | body: data | |
124 | } | |
125 | ||
126 | return JobQueue.Instance.createJob({ type: 'activitypub-http-unicast', payload }) | |
127 | } | |
128 | ||
129 | // --------------------------------------------------------------------------- | |
130 | ||
131 | export { | |
132 | broadcastToFollowers, | |
133 | unicastTo, | |
134 | forwardActivity, | |
135 | broadcastToActors, | |
136 | forwardVideoRelatedActivity, | |
137 | sendVideoRelatedActivity | |
138 | } | |
139 | ||
140 | // --------------------------------------------------------------------------- | |
141 | ||
142 | async function computeFollowerUris (toFollowersOf: ActorModel[], actorsException: ActorModel[], t: Transaction) { | |
143 | const toActorFollowerIds = toFollowersOf.map(a => a.id) | |
144 | ||
145 | const result = await ActorFollowModel.listAcceptedFollowerSharedInboxUrls(toActorFollowerIds, t) | |
146 | const sharedInboxesException = await buildSharedInboxesException(actorsException) | |
147 | ||
148 | return result.data.filter(sharedInbox => sharedInboxesException.indexOf(sharedInbox) === -1) | |
149 | } | |
150 | ||
151 | async function computeUris (toActors: ActorModel[], actorsException: ActorModel[] = []) { | |
152 | const serverActor = await getServerActor() | |
153 | const targetUrls = toActors | |
154 | .filter(a => a.id !== serverActor.id) // Don't send to ourselves | |
155 | .map(a => a.sharedInboxUrl || a.inboxUrl) | |
156 | ||
157 | const toActorSharedInboxesSet = new Set(targetUrls) | |
158 | ||
159 | const sharedInboxesException = await buildSharedInboxesException(actorsException) | |
160 | return Array.from(toActorSharedInboxesSet) | |
161 | .filter(sharedInbox => sharedInboxesException.indexOf(sharedInbox) === -1) | |
162 | } | |
163 | ||
164 | async function buildSharedInboxesException (actorsException: ActorModel[]) { | |
165 | const serverActor = await getServerActor() | |
166 | ||
167 | return actorsException | |
168 | .map(f => f.sharedInboxUrl || f.inboxUrl) | |
169 | .concat([ serverActor.sharedInboxUrl ]) | |
170 | } |